207 lines
5.1 KiB
HTML
207 lines
5.1 KiB
HTML
<HTML>
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<TITLE>Code Repository</TITLE>
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<link rel="stylesheet" type="text/css" href="mesa.css"></head>
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<BODY>
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<h1>Code Repository</h1>
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<p>
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Mesa uses <a href="http://git.or.cz/"target="_parent">git</a>
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as its source code management system.
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</p>
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The master git repository is hosted on
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<a href="http://www.freedesktop.org" target="_parent">freedesktop.org</a>.
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</p>
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<p>
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You may access the repository either as an
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<a href="#anonymous">anonymous user</a> (read-only) or as a
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<a href="#developer">developer</a>
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(read/write).
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</p>
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<p>
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You may also
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<a href="http://gitweb.freedesktop.org/?p=mesa/mesa.git"
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target="_parent">browse the git repository</a>.
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</p>
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<a name="anonymous">
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<H2>Anonymous git Access</H2>
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<p>
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To get the Mesa sources anonymously (read-only):
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</p>
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<ol>
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<li>Install the git software on your computer if needed.<br><br>
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<li>Get an initial, local copy of the repository with:
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<pre>
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git clone git://anongit.freedesktop.org/git/mesa/mesa
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</pre>
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<li>Later, you can update your tree from the master repository with:
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<pre>
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git pull origin
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</pre>
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</ol>
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<a name="developer">
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<H2>Developer git Access</H2>
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<p>
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Mesa developers need to first have an account on
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<a href="http://www.freedesktop.org" target="_parent">freedesktop.org</a>.
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To get an account, please ask Brian or the other Mesa developers for
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permission.
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Then, if there are no objections, follow this
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<a href="http://www.freedesktop.org/wiki/AccountRequests" target="_parent">
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procedure</a>.
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</p>
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<p>
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Once your account is established:
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</p>
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<ol>
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<li>Install the git software on your computer if needed.<br><br>
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<li>Get an initial, local copy of the repository with:
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<pre>
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git clone git+ssh://username@git.freedesktop.org/git/mesa/mesa
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</pre>
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Replace <em>username</em> with your actual login name.<br><br>
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<li>Later, you can update your tree from the master repository with:
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<pre>
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git pull origin
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</pre>
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</ol>
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<H2>Windows Users</H2>
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<p>
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If you're <a href="http://git.or.cz/gitwiki/WindowsInstall" target="_parent">
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using git on Windows</a> you'll want to enable automatic CR/LF conversion in
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your local copy of the repository:
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</p>
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<pre>
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git config --global core.autocrlf true
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</pre>
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<p>
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This will cause git to convert all text files to CR+LF on checkout,
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and to LF on commit.
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</p>
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<p>
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Unix users don't need to set this option.
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</p>
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<br>
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<a name="developer">
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<H2>Development Branches</H2>
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<p>
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At any given time, there may be several active branches in Mesa's
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repository.
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Generally, the trunk contains the latest development (unstable)
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code while a branch has the latest stable code.
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</p>
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<p>
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The command <code>git-branch</code> will list all available branches.
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</p>
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<p>
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Questions about branch status/activity should be posted to the
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mesa3d-dev mailing list.
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</p>
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<H2>Developer Git Tips</H2>
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<ol>
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<li>Setting up to edit the master branch
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<p>
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If you try to do a pull by just saying<code> git pull </code>
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and git complains that you have not specified a
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branch, try:
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<pre>
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git config branch.master.remote origin
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git config branch.master.merge master
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</pre>
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Otherwise, you have to say<code> git pull origin master </code>
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each time you do a pull.
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</p>
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<li>Small changes to master
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<p>
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If you are an experienced git user working on substancial modifications,
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you are probably
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working on a separate branch and would rebase your branch prior to
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merging with master.
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But for small changes to the master branch itself,
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you also need to use the rebase feature in order to avoid an
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unnecessary and distracting branch in master.
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</p>
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<p>
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If it has been awhile since you've done the initial clone, try
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<pre>
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git pull
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</pre>
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to get the latest files before you start working.
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</p>
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<p>
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Make your changes and use
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<pre>
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git add <files to commit>
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git commit
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</pre>
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to get your changes ready to push back into the fd.o repository.
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</p>
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<p>
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It is possible (and likely) that someone has changed master since
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you did your last pull. Even if your changes do not conflict with
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their changes, git will make a fast-forward
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merge branch, branching from the point in time
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where you did your last pull and merging it to a point after the other changes.
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</p>
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<p>
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To avoid this,
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<pre>
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git pull --rebase
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git push
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</pre>
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If you are familiar with CVS or similar system, this is similar to doing a
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<code> cvs update </code> in order to update your source tree to
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the current repository state, instead of the time you did the last update.
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(CVS doesn't work like git in this respect, but this is easiest way
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to explain it.)
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</br>
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In any case, your repository now looks like you made your changes after
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all the other changes.
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</p>
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<p>
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If the rebase resulted in conflicts or changes that could affect
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the proper operation of your changes, you'll need to investigate
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those before doing the push.
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</p>
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<p>
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If you want the rebase action to be the default action, then
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<pre>
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git config branch.master.rebase true
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git config --global branch.autosetuprebase=always
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</pre>
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<p>
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See <a href="http://www.eecs.harvard.edu/~cduan/technical/git/" target="_parent">Understanding Git Conceptually</a> for a fairly clear explanation about all of this.
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</p>
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</ol>
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</body>
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</html>
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